Home / 68,679.42-103,011.02-18,083.58

Finding the Fourth Proportional to 68,679.42, 103,011.02 and 18,083.58

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Solution

The fourth proportional to 68,679.42, 103,011.02 and 18,083.58 is: 27,123.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,679.42 : 103,011.02 = 18,083.58 : x
  2. Step 2: Convert to fraction form
    68,679.42/103,011.02 = 18,083.58/x
  3. Step 3: Cross multiply
    68,679.42x = 103,011.02 × 18,083.58
  4. Step 4: Simplify right side
    68,679.42x = 1,862,808,021.05
  5. Step 5: Solve for x
    x = 1,862,808,021.05/68,679.42
  6. Step 6: Final answer
    x = 27,123.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.